the first successful and an efficient regeneration system on in vitro direct plant regeneration of agastache foeniculum was reported. the experiment were done in factorial design with three replications and explants were cultured in ms media fortified with different concentrations of bap and tdz (0, 2.2, 4.4, 8.8 μm) in combination with 3 levels of iaa (0, 1.1 and 2.2 μm). anova analysis showed...

background & aim: dracocephalum genus belongs to the lamiaceae family which has eight species in iran. dracocephalum kotschyi boiss is an important medicinal and aromatic plant that use in pharmaceutical industry. in addition, this species is used in iranian traditional medicine. the aim of current study was to examine the various growth regulations and explants on direct organogenesis of d...

From the rhizoplane of Oryza sativa, vars. Morelos A-88 and Apatzingan, rice plantlets, we isolated two bacterial strains: Corynebacterium flavescens and Bacillus pumilus. By scanning electron microscopy, endophytic bacteria were frequently identified at the base of secondary roots, between the epidermis and the mucilaginous layer. Endophytes were also identified in the intercellular spaces whe...

Kalanchoë daigremontiana reproduces asexually by generating numerous plantlets on its leaf margins. The formation of plantlets requires the somatic initiation of organogenic and embryogenic developmental programs in the leaves. However, unlike normal embryogenesis in seeds, leaf somatic embryogenesis bypasses seed dormancy to form viable plantlets. In Arabidopsis (Arabidopsis thaliana), seed do...

It is of interest to apply plant tissue culture to generate plants resistant to toxic effects of cadmium (Cd) on plant growth. Callus cultures were initiated from leaf explants of micropropagated potato plantlets (Solanum tuberosum L., cv. Iwa) for in vitro selection comprising 18 different Cd treatments varying in Cd exposure timing and duration. Plantlets regenerated from two different lines ...

This study was designed to examine the effects of promoting substances on bud retention, rooting and plantlets survival of rooted cuttings on selected tree species using growth promoting substances. Stem cuttings were treated with rooting-promoting substances, planted in plastic pots filled with top soil and arranged using a completely randomized design (CRD) in a screen house. Stem cuttings of...

Background & Aim: Dracocephalum genus belongs to the Lamiaceae family which has eight species in Iran. Dracocephalum kotschyi Boiss is an important medicinal and aromatic plant that use in pharmaceutical industry. In addition, this species is used in Iranian traditional medicine. The aim of current study was to examine the various growth regulations and explants on direct orga...

Background & Aim: Dracocephalum genus belongs to the Lamiaceae family which has eight species in Iran. Dracocephalum kotschyi Boiss is an important medicinal and aromatic plant that use in pharmaceutical industry. In addition, this species is used in Iranian traditional medicine. The aim of current study was to examine the various growth regulations and explants on direct orga...

Heavy metal contamination of agricultural land is partly responsible for limiting crop productivity. Cd is known as a non-essentiel HM that can be harmful to plants even at low concentrations. Brassica juncea (L.) is able to accumulate more than 400 μg.g D.W. in the shoot, a physiological trait which may be exploited for the phytoremediation of contaminated soils and waters. In our study, we ha...

Vietnam has planning in re-forest of Chukrasia tabularis, a special-use forest and re-culture Coffea sp., an industrial crops. The first barrier is seedlings for supplying higher demand from farmers. Using thin cell layer culture method one the ways to resolve woody species. Results gave capacities using shoot-tips regeneration them far propagation. tabularis A. Juss: Shoot ti...